Mantle-burner.



S. 1. BROWN. MANILE BURNER. APPLICATION FILED AUG.2. 5H8- 1,285,571 aPatentedNov. 19, 1918.

2 SHEETSSHEEI 1- SAMUEL J. BROWN, 0F I-IARDINSBURG, KENTUCKY.

MANTLE-IBURNER.

Application filed August 2, 1918.

To all whom it may concern:

Be it known that I, SAMUEL J. BROWN, a citizen of the United States,residing at Hardinsburg, in the county of Breckinridge and State ofKentucky, have invented a new and useful Mantle-Burner, of which thefollowing is a specification.

The device forming the subject matter of this application is a burner,adapted to form a part of an oil lamp and to carry a mantle. One objectof the invention is to provide a mantle burner which will fit any lamp.Another object of the invention is to provide novel means whereby thesupply of air may be regulated to secure perfect combustion, to avoidodor, and'to secure a clear white light. A further object of theinvention is to provide novel means whereby the wick is operated andcontrolled. The invention aims to provide a structure of the kindmentioned, which will operate without a mantle, should it be desired todispense with the mantle. It is contemplated that the device forming thesubject matter of this application may be taken dowln readily forcleaning. Another object of the invention. is to provide a structure ofthe kind claimed, whereon the mantle may be mounted without jar andwithout injury to the mantle.

It is within the province of the disclosure to improve generally, and toenhance the utility of devices of that type to which the presentinvention appertains.

With the above andother objects in view, the invention consists in thenovel construc tion and arrangement of parts hereinafter described,claimed, and delineated in the accompanying drawings, itbeing understoodthat, within the scope of what is claimed, changes in the size,proportions and arrangement of parts may be made without departing fromthe spirit of themvention, a skilled mechanic being capable of workinalterations, without jeopardizing the utllity ofthe structure claimed.

In the accompanying drawings, which form apart of this application, andare to be considered in connection with the specification,

Figure 1 is a longitudinal section, showing a mantle burner constructedin accordance with the invention, parts being broken away, and partsappearing in elevation;

Fig. 2 is a top plan of the burner, a portion thereof being: removed;

Specification of Letters Patent.

Patented Nov. 19, 1918. Serial No. 248,039.

Fig. 3 is a transverse section taken on the line 33 of Fig. 1, theview'being, essentially, a bottom plan;

Fig. 4 is a transverse section taken on the line 44 of Fig. 1, distantparts being omitted;

Fig. 5 is a transverse section, taken on the line 55 of Fig. 1, distantparts being omitted, as in Fig. 4;

Fig. 6 is a fragmental elevation showing the upper end of the wick tube,the lower end of the tube being broken away;

Fig. 7 is a sectional detail taken approximately on the line 77 of Fig.1, and show ing the interlocking engagement between certain parts of thestructure;

Fig. 8 is a sectional detail showing the interlocking engagement betweenother parts of the structure, the line 8-8 in Fig. 1 serving to locatethe parts of Fig. 8, for comparlson.

The mantle burner which forms the subject matter of this application maybe embodied in a wide variety of forms, but as presenting a typical butnot'mandatory construction, there is shown in Fig. 1, a portion of alamp bowl 1 with which is connected, in any desired way, a burnerincluding a body 2 having perforations 3 and solid portions 4alternating with the areas wherein the perforations are located, thesolid portions of the body 2 acting as air shields, as will be betterunderstood when the description of the invention is developed. The body2 of the burner includes a reduced neck 5 which may be threaded, asshown at 6, into the. lamp bowl 1. A tube 7 is secured to the neck 5 andmay extend below the neck, the

' downwardly prolonged portion of the tube being threaded as indicatedat 8 so as to afford a means whereby the burner may be assembled with alamp body the top opening of which is smaller than the openin in thebody 2, wherein the neck 5 is threaded at 6. The tube 7 is provided withnotches 9, as shown in Fig. 5, these notches constituting a part of theair inlet means.

A draft tube 10 is located within the tube 7 ,and is spaced therefrom,the tube 10 being provided, adjacent its upper end, with internalprojections 40, supporting a generator thimble 41, having its lower endinserted within the draft tube, the thimble being supplied withperforations 42. The draft tube 10 is provided with openings 11disposedoppositeto the notches .9 in the tube 7, and.

forming a part of the air inlet means, the openings 11 and the notches 9being disposed opposite to the shields 4 which form a part of the burnerbody 2. A drum-like closure 12 is secured in the lower end of the drafttube 10, below theopenings 11, and has opposite extensions '14 whichextend outwardly plied with,

through the draft tube, across the space between the draft tube and thetube 7, and are connected to the tube 7. In this way, the draft tube 10is secured to the tube 7, and consequently to the body 2 of the burner.

Adjacent to its upper end, the body 2 of the burner is extendedoutwardly to form an approximately horizontal shoulder 15 having anupstanding marginal rim 16 supinwardly extended lugs 17 (noteparticularly Fig. 7), the rim 16 merging into an outwardly extendedannular top 18 having a depending flange 19. In the flange '19 and inthe top 18, openings 20 are formed, the lower edge of the flange 19being inclined, adjacent to one end of the opening 20, as shown at 21 inFig. 8.

The invention comprises an annular globe holder 22, surrounding theflange 19 and supported on the top 18, the globe holder having lugs 23struck therefrom, the lugs "projecting outwardly. The globe holder 22may be seated on the top 18, the lugs 23 passing downwardly through theopenings 20 in the flange 19. If the globe holder 22 be rotated, thelugs 23 will coiiperate with the inclined edges 21 of the flange 19 andhold the member 22 on the burner body 2, these elements thus beingconnected detachably, and the connection being effected without jar, andconsequently without damage to the mantle 34, hereinafter described, thelugs ,23 obviously cofiperating with the inclined edges 21 without sucha shock as would be produced if the lugs 23 engaged a positive stop orabutment, when the globe holder 22 is rotated. The globe holder 22 issupplied with the usual resilient fingers 24 adapted to receive a globe26 or its equivalent, the globe being supported on a top 25, forming apart of the holder 22. Thetop 25 of the globe holder comprises anannular raised rib 27 and there are fingers 28 which overhang the rib.The rib carries an internal flange 29. A cap 30is supported on the rib27, about the flange 29 and is retained detachably by the fingers 28,the cap having an opening 30 in its top. The device forming the subjectmatter of this application may, of course, be used with practically anykind of a mantle, but, as an illustration,

there is showna mantle support comprising a ring 32 seated detachably onthe cap 30, and a frame 33 carried by the ring. A mantle 34 coliperateswith the ring 32 and is suspended at 35 from the top of the frame 33. ji -A table 36 fits within the rim 16 of the burner body 2 and issupported on the shoulder 15, the table being supplied with anupstanding marginal flange 37 (Fig. 7). In the flange 37 and in the edgeof the table, notches 38 are formed, the bases of the notches beinginclined as shown at 39. The table 36 may be placed on theshoulder 15,within the rim 16, the lugs 17 entering the notches 39. If the table berotated, the inclined edges 39 of the notches 38 will co5perate with thelugs 17 on the rim 16 of the burner body 2, and bind the table 36 firmlybut detachably on the shoulder 15, within the oontour of the rim 16. Thetable is supplied with perforations '43 and has an upstanding neck 44within which is secured a tube 45 provided at its upper end with anoutstanding deflecting flange46. The tube 45 is spaced from the drafttube 10, and has, at its lower end, an offset 47 seated on the upper endof the tube 7, the tube 45 thus being removably supported on'the burnerbody 2. The tube 45 is provided with air inlets 48, registering with thenotches 9 of the tube 7 and with the openings 11 in the draft tube 10. V

A rotary tubular damper 49 is journaled on the tube 45 and supported bythe offset part 47 of the tube. The damper has opena with longitudinalslots 54 receiving the parts 14 which connect the bottom closure 12 andconsequently the draft tube 10 with the tube 7 which forms part of thebody 2. The wick tube 53, therefore, maybe adjusted vertically. A wick58, which may consist of four strips, is located inside of the wick tube53 and is held on the wick tube by means of bottom prongs 56 on the wicktube, top prongs 57 thereon, and flanges 55, which be ing located alongthe longitudinal edges of the slots 54, extend transversely of the partsof the wick 58, as shown in Figs. 3 and 5. The wick 58 may be held,further, in the wick tube 53 by means of a ring 59 located within thewick and having prongs 60 engaging the wick. Between the slots 54, thewick tube 53 has perforations 61 and there are perforations 62 in thewick tube, adj acent to its top. The wick tube 53 is supplied externallyas shown in :Fig. 6, with a rack 63 engaged by a pinion 64 on a' shaft.65 journaled in a bearing 66 carried by the burner body 2, the shaftbeing supplied at its outer end with a finger-wheel 67 The rotary damper49 may be manipulated by the handle 51 so as to cause the openings 50 inthe damper to register, to a greater or less extent, with the openings48 in the tube 45. In this way, the air supplied to the space betweenthe tube 45 and the wick tube 53, and the air supplied to the interiorof the draft tube 10 may be regulated. The air also passes upwardlythrough the perforations 43 in the table 36 and is defiected laterallyby the flange 46. The mixture burns adjacent the perforations 42 in thegenerator 41, oil being supplied by the wick 58 and being turned intogas at the generator. The shields 4 prevent a direct draft of air intothe tube 45 through the openings 48, the air, however, entering the body2 of the burner, through the perforations 3. The wick tube 53 and theWick 58 retained thereon may be raised and lowered by means of the shaft65, the pinion 64 and the rack 63.

A fine adjustment in the air supply is obtained, and the burner willgive a clear lwhite incandescent light without smoke and with a minimumconsumption of fuel. So perfect, indeed, is the construction of thedevice, that the mantle 34 may be dispensed with, if desired. Thestructure will fit many lamps and this is a distinct advantage overdevices of this kind disclosed in the prior art, so far as my knowledgethereof extends.

Having thus described the invention, what I claim as new and desire toprotect by Letters Patent of the United States of America 1s A lampburner comprising a body; a draft tube carried by the body; means forclosing the lower end of the draft tube; a wick tube surrounding thedraft tube; means for moving the wick tube longitudinally; a wickcarried by the wick tube and surrounding the draft tube; a tablesupported on the body; a third tube carried by the table and surroundingthe wick tube; a rotary damper journaled on third tube, the third tubehaving an opening, and the body having an opening cooperating with theopening in the third tube, the damper having an opening movable into andout of registration with the opening in the third tube; and a generatorin the top of the draft tube.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

SAMUEL J. BROWN.

Witnesses: JAMES H. MANNING, CHAs. CoLLiNs.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of Patents.

Washington, D. C.

